cwna certified wireless network administrator cwsp certified wireless security pdf

... Trang 11an access point or wireless bridge Below are some criteria to be considered in choosing the proper cables for your wireless network Cables introduce loss into a wireless LAN, so make sure ... important as 5 Ghz wireless LANs become more and more common Some connectors are rated only as high as 3 GHz, which is fine for use with 2.4 GHz wireless LANs, but will not work for 5 GHz wireless LANs ... the wireless LAN For example, if you are using only a 2.4 GHz wireless LAN, a splitter that is specified for use at up to 3 GHz would be best Impedance The impedance, usually 50 ohms in most wireless

Ngày tải lên: 14/08/2014, 14:20

... network performance Wireless LAN Frames vs Ethernet Frames Once a wireless client has joined a network, the client and the rest of the network will communicate by passing frames across the network, ... one type of wireless frame With 802.3 Ethernet frames, once chosen by the network administrator, the same frame type is used to send all data across the wire just as with wireless Wireless frames ... all wireless LAN products, regardless of manufacturer We will explain the difference between Ethernet and wireless LAN frames and how wireless LANs avoid collisions We’ll walk through how wireless

Ngày tải lên: 14/08/2014, 14:20

... understanding of channel use with wireless LANs is imperative for any good wireless LAN administrator As a wireless LAN consultant, you will undoubtedly Trang 8find many wireless networks that have many ... overhead on the network 17 B The near/far problem is one that is addressed by the access protocols used by wireless networks This problem is seen in both cellular and wireless LAN networks When ... want to be responsible for as a wireless LAN administrator is a network that does not allow the users to do their jobs or achieve the connections that they require An administrator's second option

Ngày tải lên: 14/08/2014, 14:20

... when choosing a wireless LAN security solution to assure it both meets the needs of the network and fits the organization's security budget 16 A An enterprise wireless gateway has no wireless segments ... corporate security policy Other items that should be covered in the security policy are strong passwords, strong WEP keys, physical security, use of advanced security solutions, and regular wireless ... will ensure that the wireless network remains as safely guarded as the wired network Keep Sensitive Information Private Some items that should be known only by network administrators at the

Ngày tải lên: 14/08/2014, 14:20

... weather causes disruption to wireless LANs However, you must be aware of, prepare and compensate for, these types of weather before the implementation of the wireless network Lifts and ladders could ... is very important if the user is to make productive use of the wireless LAN From the answers provided by the network manager or administrator, you will know to look for locations within the facility ... if any of the neighboring high-rises have wireless LANs FIGURE 11.17 Multi-tenant Office Buildings Proposed Wireless LAN for Client ABC Corp. 802.11b Wireless LAN Coverage Area Are there any

Ngày tải lên: 14/08/2014, 14:20

... Trang 1Vendor-neutral wireless networktraining and certification Trang 2CWNP™ Certification Program The Certified Wireless Network Professional Training & Certification ... and Certification program, the CWNA certification picks up where other popular networking certification programs leave off: wireless LANs Your study of wireless networking will help you bring ... supporting wireless networks, based on the exam objectives of the CWNA certification exam You will learn the wireless technology standards, governing bodies, hardware, RF math, RF behavior, security,

Ngày tải lên: 14/08/2014, 14:20

... characters long used by wireless LANs as a network name This naming handle is used for segmenting networks, as a rudimentary security measure, and in the process of joining a network The SSID value ... is important for the wireless network administrator to understand that neither Open System nor Shared Key authentication types are secure, and for this reason a wireless LAN security solution, ... with an external VPN server VPN Server or Wireless Gateway L2 Connection L3 VPN Connection on the same wireless network The range of the wireless network will likely extend beyond the physical

Ngày tải lên: 14/08/2014, 14:21

... changes are implemented 17 D Network information may be contained in the Session Information section of the EM Database Control Performance screen, but only if network issues contributed to ... As a database administrator, your primary goal is to keep the database open and available for users, usually 24 hours a day, 7 days a week Your partnership with the server’s system administrator

Ngày tải lên: 24/12/2013, 02:17

... Wireless Security Mark Nakrop Managing Director nForce Security Systems Wireless Security, Advanced Wireless LAN Hacking Advanced 802.11 Attack Wireless Best Practices Wireless Hacking ... NetStumbler - identifies wireless access points and peer networks , http://www.netstumbler.com AiroPeek - actually lets you peak into the data transmitted across a wireless network , http://www.wildpackets.com/products/airopeek ... APs, DoS attacks, client misassociations, Honeypots, ad hoc networks, MAC spoofing etc. Current pain point in enterprise network Wireless Intrusion Detection and Prevention Systems 802.11, 802.11b,

Ngày tải lên: 22/01/2014, 15:20

... Additionally, make sure there is a wireless AP that provides connectivity to the Ethernet intranet network segment for the wireless client The firewall for the wireless AP is controlled by the ... configuration of the wireless test lab The wireless test lab represents a network segment on a corporate intranet All computers on the corporate intranet, including the wireless AP, are connected ... dialog box, click OK The WirelessUser user account is added to the WirelessUsers group This is shown in the following figure 27 Trang 265 Click OK to save changes to the WirelessUsers group.Add

Ngày tải lên: 27/01/2014, 02:20

... ) Introduction Thank you for choosing our wireless home security system This home security system is a high-quality, reliable and versatile security system This system provides both two-way ... Trang 1Wireless Security & Safety System OWNER’S MANUAL Trang 3……… Panic Alert Function ……… Arm or Disarm ... working together properly About the Main Console operation 00 HOME SECURITY Disarmed Trang 9The Main Console is the heart of the security system It monitors the sensors and the responds according

Ngày tải lên: 12/02/2014, 14:20

... Robust security is a requirement for many companies deploying a wireless network However, creating a secure wireless network has often been difficult and time-consuming This paper describes the security ... walls of an organization, physical security is less effective than with wired networks Second, wireless network abuse has become more common, with tools that assist wireless hacking widely available, ... of devices that are able to access a corporate network Wireless networks are also subject to several regulations that mandate the high security networks, including PCI, HIPAA, and SOX The credit

Ngày tải lên: 14/03/2014, 22:20

... Trang 1NETWORK SECURITYWIRELESS SECURITY ISSUES MAI Xuân Phú xuanphu150@gmail.com 1 Trang 22  Attacks on Wireless Networks  Wired Equivalent Privacy (WEP) ... machine) A B C SYNSYNSYN SYN SYNSYNSYN 12 Trang 13Wireless Network SecurityWireless stations, or nodes, communicate over a wireless medium  Security threats are imminent due to the open nature ... & B Bezawada, Security Issues and Challenges in Wireless Networks Trang 18Threats in Present Solutions Network LayerAd hoc networks Trang 19Threats in Present Solutions Network LayerDenial-of-service

Ngày tải lên: 23/03/2014, 00:20

... Security+ All-In-One Edition Chapter 10 – Wireless Security Brian E. Brzezicki Wireless Look No Wires! Wireless Attempt at communication using non-physical ... Waves • Light Pulses Often used for networking, but can be used simply to eliminate wires for device to device communication. Wireless LAN protocols 802.11 standard • Wireless LAN networking • Data Link ... (MIMO) – 100Mbs – 2.4G or 5Ghz Wireless Problems • Easy to get access to airwaves, hard to restrict! Talk about the attacks next. Wireless Attacks Wireless Attacks • War driving – Wireless scanners – Netstumber

Ngày tải lên: 29/03/2014, 14:20

... on Wireless Communications and Networking 2011, 2011:148 http://jwcn.eurasipjournals.com/content/2011/1/148 RESEARCH Open Access Adaptive cognitive media delivery over composite wireless networks ... available resources in an opportunistic manner The dynamic nature of the Internet traffic and wireless local area networking technologies, which are typical within the home, must be considered in order ... CR resource management approach applied to wireless unmanaged OTT CoD services Standardisation activities associated with CR solutions, for composite networks, focus on the architecture, information

Ngày tải lên: 20/06/2014, 22:20

... differ-entiation in IEEE 802.11-based Hot Spot networks We believe that the proposed scheme is very appropriate for providing a QoS scheme for LBSs in wireless networks and also used to extend previous ... per-location traffic to the network-wide load TaLE also esti-mates the network-wide load,ω  i, and includes it in the computation of per-location target load The network-wide load is tightly ... can easily cali-brate the network-wide load with only the queue length, without estimating the aggregate input rate, or the cur-rent wireless link capacity and thus the network-wide load is as:

Ngày tải lên: 20/06/2014, 22:20

... of routing protocols for wireless ad hoc networks [1, 2] The movement pattern of mobile nodes plays an important role in the performance analysis of mobile and wireless networks Additionally, mobility ... different mobility models on connectivity probability of a wireless ad hoc network,” in Proceedings of the International Workshop on Wireless Ad-Hoc Networks, pp 120–124, June 2004 [5] F Bai, N Sadagopan, ... Ad Hoc Networking, pp 173–219, Addison-Wesley, Reading, Mass, USA, 2001 [2] D B Johnson, D A Maltz, and J Broch, “DSR: the dynamic source routing protocol for multi-hop wireless ad hoc networks,”

Ngày tải lên: 21/06/2014, 11:20

... study data-centric storage in mobile wireless networks. To detect mobility of wireless nodes, [11] used received signal strength in wireless LAN to detect wireless device mobility.Reference [12] ... only deal with static wireless networks However, with the increasing deployment of wireless devices, there are emerging pervasive applications that rely on the mobility of wireless device Two representative ... scalability in wireless networks Whereas the security and privacy concerns in data-centric storage are addressed in [3] Most of these current works only deal with static sensor networks In this

Ngày tải lên: 21/06/2014, 18:20

... discussed. In addition to wireless LANs (WLANs), wireless personal area networks (WPANs), wireless metropolitan area networks (WMANs), and wireless wide area networks (WWANs) are also taking ... peacefully. CWNA Study Guide â Copyright 2002 Planet3 Wireless, Inc. 15 Chapter 1 - Introduction to Wireless LANs Answers to Review Questions 1. A. The most alluring feature of a wireless network ... design model is where users attach to the network. Wireless network devices are most generally installed in this capacity. There are times when wireless networks may be used in a distribution role,...

Ngày tải lên: 14/08/2014, 14:20

... Chapter 4 – Wireless LAN Infrastructure Devices FIGURE 4.10 A sample wireless workgroup bridge FIGURE 4.11 A wireless workgroup bridge installed on a network Access Point Wireless Workgroup Bridge W i r e d ... filtering capabilities allowing the administrator to control traffic across the wireless link. CWNA Study Guide â Copyright 2002 Planet3 Wireless, Inc. 83 Chapter 4 – Wireless LAN Infrastructure ... protocol filters may be built into a wireless bridge. As a basic security provision, the administrator may configure a wireless bridge to allow or disallow network access to particular devices...

Ngày tải lên: 14/08/2014, 14:20